Earphone



FIG. 1 is a front, left side perspective view of an earphone;

FIG. 2 is a front, right side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The dashed broken lines depict portions of the earphone that form no part of the claimed design. 

CLAIM The ornamental design for an earphone, as shown and described. 